Septia Irawan, A., Shahin, B., Wangeshi Njuguna, D., Nellamkuzhi, N., Thiên, B., Mahrouseh, N., Varga, O.: Analysis of Content, Social Networks, and Sentiment of Front-of-Pack Nutrition Labeling in the European Union on Twitter.
Front. Nutr. 9 1-14, 2022.

Charalampous, P., Gorasso, V., Plass, D., Pires, S., Lippe, E., Mereke, A., Idavain, J., Kissimova-Skarbek, K., Morgado, J., Ngwa, C., Noguer, I., Padron-Monedero, A., Santi-Cano, M., Sarmiento, R., Devleesschauwer, B., Haagsma, J., COST Action CA18218 Participants: Burden of non-communicable disease studies in Europe: a systematic review of data sources and methodological choices.
Eur. J. Public Health. 32 (2), 289-296, 2022.

Hulsen, T., Petkovic, M., Varga, O., Jamuar, S.: Editorial: AI in Healthcare: From Data to Intelligence.
Front. Artif. Intell. 5 1-2, 2022.

Franco, N., Batista, S., Kovács, N., Nagy, A., Thiên, B., Reis, F., Varga, O.: Assessing Scientific Soundness and Translational Value of Animal Studies on DPP4 Inhibitors for Treating Type 2 Diabetes Mellitus.
Biology (Basel). 10 (2), 1-18, 2021.

Bencze, Z., Kovalecz, G., Marton, S., Gáll, T., Mahrouseh, N., Varga, O.: Childhood caries management in the European Union: a cross-sectional study.
Heliyon. 7 (2), 1-10, 2021.

Mahrouseh, N., Soares, A., Kovács, N., Njuguna, D., Varga, O.: Diabetes Mellitus and Associated Factors in Slovakia: results from the European Health Interview Survey 2009, 2014, and 2019.
Nutrients. 13 (7), 1-11, 2021.

Goddiksen, M., Quinn, U., Kovács, N., Lund, T., Sandøe, P., Varga, O., Willum Johansen, M.: Good friend or good student? An interview study of perceived conflicts between personal and academic integrity among students in three European countries.
Accountability in Research. 28 (4), 247-264, 2021.

Lovas, S., Mahrouseh, N., Bolaji, O., Nellamkuzhi, N., Soares, A., Njuguna, D., Varga, O.: Impact of Policies in Nutrition and Physical Activity on Diabetes and Its Risk Factors in the 28 Member States of the European Union.
Nutrients. 13 (10), 1-17, 2021.

Helter, T., Kovács, I., Kanka, A., Varga, O., Kálmán, J., Simon, J.: Internal and external aspects of freedom of choice in mental health: cultural and linguistic adaptation of the Hungarian version of the Oxford CAPabilities questionnaire-Mental Health (OxCAP-MH).
BMC Psychol. 9 (1), 1-14, 2021.

Njuguna, D., Mahrouseh, N., Isowamwen, O., Varga, O.: Knowledge, Attitude and Practice of Main Stakeholders towards Human Papilloma Virus Infection and Vaccination in Mombasa and Tana-River Counties in Kenya: a Qualitative Study.
Vaccines. 9 (10), 1-16, 2021.

Nagy, C., Juhász, A., Pikó, P., Diószegi, J., Paragh, G., Szabó, Z., Varga, O., Ádány, R.: Preventive Metformin Monotherapy Medication Prescription, Redemption and Socioeconomic Status in Hungary in 2018-2019: A Cross-Sectional Study.
Int. J. Environ. Res. Public Health. 18 (5), 1-10, 2021.

Bencze, Z., Mahrouseh, N., Soares, A., Kovács, N., Varga, O.: The Burden of Early Childhood Caries in Children under 5 Years Old in the European Union and Associated Risk Factors: an Ecological Study.
Nutrients. 13 (2), 1-12, 2021.

Juhász, A., Nagy, C., Varga, O., Boruzs, K., Csernoch, M., Szabó, Z., Ádány, R.: Antithrombotic Preventive Medication Prescription Redemption and Socioeconomic Status in Hungary in 2016: A Cross-Sectional Study.
Int. J. Environ. Res. Public Health. 17 (18), 1-16, 2020.

Kessel, R., Steinhoff, P., Varga, O., Breznoščáková, D., Czabanowska, K., Brayne, C., Baron-Cohen, S., Roman-Urrestarazu, A.: Autism and education - Teacher policy in Europe: Policy mapping of Austria, Hungary, Slovakia and Czech Republic.
Res. Dev. Disabil. 105 1-10, 2020.

Katona, C., Gutási, É., Papp, M., Varga, O., Kósa, K.: Facilitating equal access to primary care for all: work experiences of health mediators in a primary health care model programme in Hungary.
BMC Fam. Pract. 21 (1), 1-12, 2020.

Horváth, T., Hanák, L., Hegyi, P., Butt, E., Solymár, M., Szűcs, Á., Varga, O., Thiên, B., Szakács, Z., Csonka, E., Hartmann, P.: Hydroxyapatite-coated implants provide better fixation in total knee arthroplasty. A meta-analysis of randomized controlled trials.
PLoS One. 15 (5), 1-13, 2020.

Onisoyonivosekume, D., Mahrouseh, N., Varga, O.: Introduction to Health Law.
In: Health Information Management: Empowering Public Health. Ed.: John Mantas, Ramo Sendelj, Ivana Ognjanovic, Petra Knaup, Elske Ammenwerth, Orsolya Varga, Ios Press, Amsterdam, 10-18, 2020. ISBN: 9781643681276

Diomidous, M., Magdalinou, A., Varga, O.: Mission and Structure of Health Services.
In: Health Information Management: Empowering Public Health. Ed.: John Mantas, Ramo Sendelj, Ivana Ognjanovic, Petra Knaup, Elske Ammenwerth, Orsolya Varga, Ios Press, Amsterdam, 19-28, 2020. ISBN: 9781643681269

Njuguna, D., Mahrouseh, N., Onisoyonivosekume, D., Varga, O.: National Policies to Prevent and Manage Cervical Cancer in East African Countries: a Policy Mapping Analysis.
Cancers (Basel). 12 (6), 1-16, 2020.

Ádány, R., Pikó, P., Fiatal, S., Kósa, Z., Sándor, J., Bíró, É., Kósa, K., Paragh, G., Bácsné Bába, É., Veres-Balajti, I., Bíró, K., Varga, O., Balázs, M.: Prevalence of Insulin Resistance in the Hungarian General and Roma Populations as Defined by Using Data Generated in a Complex Health (Interview and Examination) Survey.
Int. J. Environ. Res. Public Health. 17 (4833), 1-22, 2020.

Franco, N., Sónia, B., Kovács, N., Nagy, A., Akinsolu, F., Olsson, I., Varga, O.: Trends in animal model preference for preclinical drug testing for type-2 diabetes and future directions.
bioRxiv 2020 1-6, 2020.

Bencze, Z., Varga, O.: Cikkismertetés: Vége a globális orális egészség mellőzésének: itt az ideje a radikális intézkedéseknek = article review : Ending the neglect of global oral health : time for radical action.
Egészségfejlesztés. 60 (5), 146-147, 2019.
(Ismertetett mű: Richard Watt et al. -Ending the neglect of global oral health: time for radical action /In: Lancet. - 394 : 10194 (2019), p. 261-272. -)

Fraihat, N., Madae'en, S., Bencze, Z., Herczeg, A., Varga, O.: Clinical Effectiveness and Cost-Effectiveness of Oral-Health Promotion in Dental Caries Prevention among Children: systematic Review and Meta-Analysis.
Int. J. Environ. Res. Public Health. 16 (15), 1-33, 2019.

Akinsolu, F., Nemieboka, P., Njuguna, D., Ahadji, M., Kölesné Dezső, D., Varga, O.: Emerging resistance of neglected tropical diseases: a scoping review of the literature.
Int. J. Environ. Res. Public Health. 16 (11), 1-14, 2019.

Bui, T., Bui, Q., Németh, D., Hegyi, P., Szakács, Z., Rumbus, Z., Tóth, B., Emri, G., Párniczky, A., Sarlós, P., Varga, O.: Epidermal Growth Factor is Effective in the Treatment of Diabetic Foot Ulcers: meta-Analysis and Systematic Review.
Int. J. Environ. Res. Public Health. 16 (14), 1-13, 2019.

Kovács, N., Pálinkás, A., Sipos, V., Nagy, A., Harsha, N., Kőrösi, L., Papp, M., Ádány, R., Varga, O., Sándor, J.: Factors associated with practice-level performance indicators in primary health care in Hungary: a nationwide cross-sectional study.
Int. J. Environ. Res. Public Health. 16 (17), 1-15, 2019.

Hulsen, T., Jamuar, S., Moody, A., Karnes, J., Varga, O., Hedensted, S., Spreafico, R., Hafler, D., McKinney, E.: From Big Data to Precision Medicine.
Front. Med. 6 (34), 1-14, 2019.

Bencze, Z., Fraihat, N., Varga, O.: Patent Landscape Analysis of Dental Caries in Primary Teeth.
Int. J. Environ. Res. Public Health. 16 (12), 1-8, 2019.

Tóth, B., Németh, D., Soós, A., Hegyi, P., Pham-Dobor, G., Varga, O., Varga, V., Kiss, T., Sarlós, P., Erőss, B., Csupor, D.: The Effects of a Fixed Combination of Berberis aristata and Silybum marianum on Dyslipidaemia: a Meta-analysis and Systematic Review.
Planta Med. 86 (2), 132-143, 2019.

Kovács, N., Varga, O., Nagy, A., Pálinkás, A., Sipos, V., Kőrösi, L., Ádány, R., Sándor, J.: The impact of general practitioners' gender on process indicators in Hungarian primary healthcare: a nation-wide cross-sectional study.
BMJ Open. 9 (9), 1-9, 2019.

Smith, D., Anderson, D., Degryse, A., Bol, C., Criado, A., Ferrara, A., Franco, N., Gyertyán, I., Orellana, J., Ostergaard, G., Varga, O., Voipio, H.: Classification and reporting of severity experienced by animals used in scientific procedures: FELASA/ECLAM/ESLAV Working Group report.
Lab. Anim. 52 (suppl), 5-57, 2018.

Akinsolu, F., Balczár, E., Kovács, N., Gáll, T., Harangi, M., Varga, O.: Developing a database for Rett syndrome research performed in the European Union: a resource for researchers and stakeholders.
Child Care Health Dev. 44 (5), 794-800, 2018.

Akinsolu, F., De Paiva, V., Souza, S., Varga, O.: Patent Landscape of Neglected Tropical Diseases: An analysis of worldwide patent families.
Globalization and Health. 13 (82), 1-13, 2017.

Cvek, K., Varga, O., Schuppli, C., Ormandy, E., Guillén, J., Gruber, F., Fernandes, J.: Regulation and Legislation: overview and Background.
In: Animal Ethics in Animal Research. Ed.: Helena Röcklinsberg, Mickey Gjerris, I. Anna S. Olsson, Cambridge University Press, Cambridge, 68-90, 2017. ISBN: 9781108354882

Varga, O.: Kutatás.
In: Rett-szindróma : készült Andreas Rett 1966-ban megjelent, a Rett-szindróma tüneteit elsőként leíró tanulmányának 50. évfordulójára. Szerk.: Szűcs Alexandra, Magyar Rett Szindróma Alapítvány, Budapest, 22-27, 2016. ISBN: 97896312637639631263762

Olsson, I., Varga, O., Sandøe, P.: A matter of importance: considering benefit in animal ethics review.
ALTEX Proceedings. 4 (1), 33-36, 2015.

Varga, O., Zsíros, N., Olsson, I.: Estimating the predictive validity of diabetic animal models in rosiglitazone studies.
Obes. Rev. 16 (6), 498-507, 2015.

Varga, O.: A ritka betegségek kutatásának dilemmái.
LAM. 24 (4), 218-221, 2014.

Varga, O.: Globális egészség fogalma a nemzetközi jogban.
In: Egészségdiplomácia. Szerk.: Ádány Róza, Kökény Mihály, Ilona Kickbusch, Medicina Könyvkiadó Zrt., Budapest, 271-300, 2014. ISBN: 9789632265148

Varga, O.: Critical Analysis of Assessment Studies of the Animal Ethics Review Process.
Animals. 3 (3), 907-922, 2013.

Varga, O., Sandøe, P., Olsson, I.: Assessing the animal ethics review process.
In: Climate change and sustainable development : ethical perspectives on land use and food production. Ed.: by Thomas Potthast, Simon Meisch, Wageningen Academic Publishers, Wageningen, 462-467, 2012.

Varga, O., Soini, S., Kääriäinen, H., Cassiman, J., Nippert, I., Rogowski, W., Nys, H., Kristoffersson, U., Schmidtke, J., Sequeiros, J.: Definitions of genetic testing in European legal documents.
J. Community Genet. 3 (2), 125-141, 2012.

Varga, O.: Predictive validity of animal models and the question of size.
In: Large animals as biomedical models : Ethical, societal, legal and biological aspects / Kristin Hagen, Angelika Schnieke, Felix Thiele (eds), Europäische Akademie, Bad Neuenahr-Ahrweiler, 113-125, 2012. ISBN: 1435487X

Varga, O., Sandøe, P., Olsson, I.: Assessing the benefit of animal experimentation.
In: Global food security : ethical and legal challenges. Eds.: Romeo Casabona, C. M., Escajedo San Epifanio, L., Emaldi Cirión, A, Wageningen Academic Publishers, Wageningen, 406-411, 2010.

Varga, O., Harangi, M., Olsson, I., Hansen, A.: Contribution of animal models to the understanding of the metabolic syndrome: a systematic overview.
Obes. Rev. 11 (11), 792-807, 2010.

Varga, O., Hansen, A., Sandøe, P., Olsson, I.: Improving transparency and ethical accountability in animal studies: three ways to link ethical approvals to publications.
EMBO Rep. 11 (7), 500-503, 2010.

Olsson, I., Varga, O., Sandøe, P.: Rite of passage to brute science with bias at the bench?: widening the ethical discussion of animal-based research.
In: Global food security : ethical and legal challenges. Eds.: Romeo Casabona, C. M., Escajedo San Epifanio, L., Emaldi Cirión, A, Wageningen Academic Publishers, Wageningen, 400-405, 2010.

Varga, O., Hansen, A., Sandøe, P., Olsson, I.: Validating animal models for preclinical research: a scientific and ethical discussion.
Altern. Lab. Anim. 38 (3), 245-248, 2010.

Varga, O.: A biotechnológiai szabadalmak vitája: az Európai Szabadalmi Hivatal esete a BRCA1 és BRCA2 génnel.
LAM. 18 (4), 338-341, 2008.

Varga, O.: A transzlációs medicina és az állatkísérletek.
LAM. 18 (2), 163-167, 2008.

Varga, O.: A természetgyógyászat főbb jogi és etikai kérdései.
In: Professziók-etikák-relációk. Szerk.: Bertók R. [et al.], ERFO Kiadó, Pécs, 160-169, 2007.

Sarkadi, Á., Varga, O.: A természetgyógyászat nyomában.
LAM. 17 (10), 725-728, 2007.

Varga, O.: Mondd, te kit választanál?: a természetgyógyászat nyomában.
LAM. 17 (4-5), 368-370, 2007.

Varga, O., Molnár, P.: Természetvédelem és gyógyítás.
LAM. 17 (10), 725-727, 2007.

Varga, O., Kakuk, P.: European Union and alternative medicine: some institutional and legal impacts on a developing field.
Integr. Med. Ins. 1 27-33, 2006.

Varga, O., Márton, S., Molnár, P.: Status of complementary and Alternative Medicine in European Medical Schools.
Forsch. Komplementarmed. Klass. Naturheilkd. 13 (1), 41-45, 2006.

Varga, O., Molnár, P.: Szabadalmi rendszer: értünk vagy ellenünk?.
LAM. 16 (4), 382-384, 2006.

Varga, O.: Természetgyógyászat Magyarországon: a természetgyógyászat jelenléte az egészségügyi ellátásban.
Deb. Dis. 3 (5), 9-13, 2005.

Varga, O., Molnár, P.: Természetgyógyászok és a betegellátás felelőssége = Natural healers and the problem of responsibility in health care.
Komplement. Med. 9 (4), 13-18, 2005.

Varga, O., Molnár, P.: Természetgyógyászok és a kártérítési felelősség.
LAM. 15 (3), 238-240, 2005.

Varga, O.: Az Európai Unió és a természetgyógyászati tevékenység szabályozása, különös tekintettel a homeopátiára.
Komplement. Med. 8 (3), 48-51, 2004.

Varga, O., Molnár, P.: Orvostanhallgatók természetgyógyászathoz való viszonyulásának kérdőíves felmérése.
Egészségfejlesztés. 45 (5-6), 20-25, 2004.